Motor-plow.



L. s. HAGKNEY MOTOR PLOW.

APPLIGATION FILED PEBA, 1911.

Patented July 29, 1913 5 SHEETS-SHEET 1.

Laye

r' Leslie 5 Ha/(716g M a, am;

s es L. s. HACKNBY.

MOTOR PLOW.

l l APPLICATION FILED FEBA, 1911. 1,069,002. A

5 SHEETS-SHEET 2V Invair/ZEP Leslie, HacK71e1d Patented July 29, 1913.

L. S. HACKNEY.

MOTOR PLOW,

A APPLICATION FILED FEBA, 1911. 1,0693002. Patented July 29, 1913. u 5 SHEETS-SHEET s,

a mf 1m I@ L a m L 0/ vd 10 s. H AOKNEY. MOTOR PLOW.

I APPLIOTION FILED FEBA, 1911. 1,069,002.

5 SHEETS-SHEET 4.

. Leslie, 5. JfcwKneg `Patemed July 29, 1913.

L. S. HACKNEY.

MOTOR PLOW.

I y APPLICATION FILED PERA, 1911. 1 ,069,002. Patented July 29, 1913;

5 SHEETS-SHEET 5.'

' Y' l v Lesbie SEM/ 1163 To' all 'whom it may concern motor plows.

Urvrrnn srarns LESLIE s. HACKNEY,` or srf PAUL, ivrrrrr'mso'ra.

PATENT OFFICE.

MOTOR-PLOW.

'Specification of Letters Patent.

Patented July 29, 1913.

Be it known that I, Lnsnrn S. HACKNEY, a citizen of the United States; residing 'at f St. Paul, in the county o f 'Ramsey and State yof Minnesota, have invented new and useful Improvements in Motor-Plows, .of which the following is a specification.

My invention relates to improvements in l The object of my invention is to provide a motorplow simple and durable in con struction and arranged with its plow and motor' control within easy access and view of a single operator. A ,A further object of my invention is to provide such an implement having its plows Heiribly attached to the frame, between its supporting wheels and in full view of the operator. fur-ther object of my invention is to provide a motor plow-having shares adjust ed vertically by power, and provided with means fbryieldingly holding said shares in their operative positions.

'Figure 1 is a side elevation of my i1nv proved motor plow; Fig. 2 is a plan view of .the same with the hood and vdash removed; 3 is a sectionall view taken on the line of Figllshowing the plow hitch and draw bar connection; Fig. 4 is a side elevation in detail of the means for yieldingly holding the plows in their operative positions; Fig. 5 is an end elevation of the same;

` Fig. 6 is a detail of the link ,connection beu tween the plow beams and draw bar; Fig. 7 is a detail view of the plow releasing mech- `anism; Fig. 8 shows the hand operating device for raising the plows; Fig. 9 is a detail in side elevation of the safety stop and plowconnect-ion and Fig. 10 is an en View of the stop.

Referring to the accompanying drawings the reference numeral 10 indicates the main frame.` This frame is supported at its forrged -side ward end by the traction wheels 11` jour-- naled thereon and at its rear by the steering wheel 17. The motor is in operatlve con-` nection with the power shaft 53 on the frame 10. A

The draw bar 58 is suspended from the lmain frame 10`by the rods 59-and is braced bythe bars 60 which extend between the frame and said bar. Pairs of plates 61 are fixed tothe draw bar 58 and are 'provided with perforations 62.' The channeled links4 63 are connected to said plate at one end by bolts in a pair of perforations 62 and are connected at their other ends to the plow beams 64. The links above described tit ilgsely between the plates 61 and the forked ends f the plow beams G4. This construction prevents lateral movement of said beams and provides flexible connections, accommodating themselves to uneven motions between the plow beams 64 and the main frame 10. The rods 65a pivotally connected to the plow beams 64 hold the plows at a fixed distance apart from each other.

The gang of plows is operated vertically as follows: Each of the cables 66 is fixed to one of the plows 65 and'extend's Athrough one of the guide pulleys 67 to the drum 68 on the shaft 69. Said shaft 69 is driven by the sprocket wheel 70 which in turn is connected through the chain 7l with the sprocket wheel 72 on the counter shaft 73. The counter shaft bearing 74 is slidably mounted on the main frame l0 and is connected with the pedal 75 which moves said bearing forward to engage the friction pulley 7 6 on the counter shaft 7 3 with the friction drive pulley 77 on the shaft 53. The engagement of the pulley 76. with the drive pulley 77 causes the drum 68 to rotate, thus winding up the cables 66 and elevating the plows 65. The ratchet wheel 78 on the shaft 69 is engaged b v the spring actuated pawl 79. Said pawl normally prevents the rotation of said shaft 69 in a direction to lower `the plows. The plows are lowered by gravity when the pawl 79 is released from engagement with the ratchet wheel 78 by its operating pedal 80.

Means for manually raising the plows are provided as follows: The ratchet wheel 81 is feathered on the shaft 69 and is operated by the lever 82 in a direction to wind the is .adapted toform a rest for the lever 82 when said lever is not in use.

vvvThe operating levers,V pedals and hand ing support comprising the upper member vraising the plows.

85, the lower members 86 and the adjustable spring 87. The members and 86 are pivotally connected by the bolt 85a one end of the member 85 being pivotally attached to the main frame 10, and the opposite ends of the members 86 being pivotally conneted to the plow beams 64. The s ring 87 is'adjustably attached at one en to the main,

frame 10 and atv the other to said members 86 by a link 88 and to said member 85 by a link 89, said last mentioned link being slidabl y mounted in the slot 90. When the plows are in their operative positions as shown in Fig. 4 of the drawings, the supporting members 85 and 86 are extended, the centers of their/pivotal connections being approximately but not exactly in vertical alinement. The link 89 rests at the bottom of the slot 90 near the connection between the said supporting members, thus bringing the spring and support connection to a position where the maximum downward pressure on the plows is secured. Elevating the blows, either'by inequalities in the surface of the earth or by the plow lift, breaks the support to the rear, against the action of the spring` 87, as shown in dotted lines in Fig. 4- of the drawings. When the plows are in their elevated or inoperative positions, the members 85 and 86 are folded, said link 89 resting in the slot 90 at the upper end of the member 85 near the frame connection. This position of the spring connectionrelieves thetension on the spring 87 and results in a minimum downward pressure on the plows.

The safety stop for limiting the upward movement of the plows is arranged as follows: r.lhe bar 91 is pivotally connected at one end to the plow beams 64 and at the other 'end to the bar 92, which is pivotally mounted on the shaft 73 at a point near one end of said bar, as shown in Figs. ,9 and 10. The free end of the bar '92 is beveled at 93 and engages the shaft 53 as the plows are raised. The engagementof said beveled edge with the stationary shaft.- 53 moves the counter shaft 73 toward the rearand disengages the friction pulleys 76 and 77 againstlthe pressure on the pedal 75 which is brought to bear by the operator in The disengagement of the friction pulleys 76 and 77 stops the winding of the cables 66 by the drum 68 said drum being held from rotation to unwind the cables bythe ratchet 78. The

downward movement of the plows is limited by the cables 66, whose attachment tothe drum 68 is varied according to the desired working depth of the plows.,4 The pulverizer 94 is rotatably mounted between the forks 94a, said forks being pivotally mounted on the shaft 38 to permit vertical adjustment of said pulverizer. 95 connects the sprocket wheel 96 on the shaft 38 and the sprocket wheel 97 on the pulverizer shaft 98 and rotates the same.

The chain The lever 99 is provided with a hand operated pawl 100 and a sector 101 and ad- Y The plows are stopped in- Having described my invention, .what I claim as new and desire to protect by Let-- ters Patent, is

1. In a plow of the' class described, the.

combination of a frame, supporting wheels therefor, plow beams carrying plows-beneath said frame and folding supports between said frame and beams, said supports comprising upper and -lower pivoted mem bers and springs, each attached to the frame at one end and provided atthe other with a link slidable in one of said upper members and with a second link pivoted in one of said lower members.

2. In a plow of the class described, the` v.

'combination of aframe, su porting wheels therefor, a draw bar carrie by said frame, plows connected with saiddraw bar, plowscarried by said beams, jointed plow supat the other provided with links connected ports between the frameand beams, a coiledspring attached to the frame at one lend andA respectively to the upper and lower mem# f bers of the support whereby said support is held in extended posit-ion, and means for lifting the plows and thereby folding said support against the tension of the spring.

3. In a plow of the class described the combination of a frame, supporting wheels journaled thereon, a draw bar carried by said frame, plow beams carrying plows connected to the draw bar, yielding supports.

for holding each of the plows in operative position, each comprising a slotted upper supporting member pivotally connected at one end to the main frame,=lower support''v ing members each pivotally connected at one ofV its ends to a plowbeam and at its other end to the first mentioned member, a spring' adjlustably attached tothe frame at one end, e.

a link connected at one end to said spring name to this specification inthe presence of `and t the (her to ore he supporzingv two subscribing Witnesses. n `mem ers an a secon i connectec at one end to the spring and sldably mounted LESLIE S HACKNEY 5 ab the other end in one of sa'd supporting Witnesses:

members. f NINA L. BABCOCK,

In testimony whereof, I have signed my B. C. STRANG. 

